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Security Advisories

CVE-2026-8404

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-8404

Severity

Unknown
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Summary

Potential exposure of private data via case-sensitive Cache-Control directives in UpdateCacheMiddleware

Description

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their Cache-Control directives used uppercase or mixed-case values. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Ahmed Badawe for reporting this issue.

References

Affected packages


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